Can-soldering machine



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G. 1E.`L0GKW00D. l GAN SOLDERING MACHINE.

No. 555,782. Patented Mar, 5,1895.

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Gr.13. LOCKWOOD. GAN SIOLDBRING MACHINB.-

'Patented Mar.3,1896.

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Gr.v E. LOCKWOOD. GAN SOLDBRING MACHINE.

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GEORGE E. LOCKMOOD, OF PHILADELPHIA, PENNSYLVANIA.

CAN-SOLDERING.IMACHIN'E.

SPECIFICATION forming part of Letters Patent No. 555,782, dated March 3, 1896.

Application iediipiii 26, 1894.

To aZZ whom t may concern: Be it known that I, GEORGE E. LocKwooD, a citizen of the United States, residing in the city and county of Philadelphia, State of Pennsylvania, have invented a new and useful Improvement in Can-Soldering Machines, which improvement is fully set forth in the following specification and accompanying drawings.

My invention relates toimproveinents in can soldering or capping machines, for which Letters Patent No. 448,289 were granted to me, assigner, te., on the 23d day of December, 1890; and it consists in rendering the bed adjustable relatively to accommodate cans of different heights, of novel means for applying acid to the cans, of novel means for intermittently feeding,` the soldering-wire to the place of application, and novel details of construction, as will be hereinafter set forth.

Figure l represents a perspective view of a can-soldering machine embodying my invention. Fig. 2 represents a partial side elevat-ion and partial vertical section thereof. Fig. 3 represents a top or plan view of a can conveying or feeding iiight and connected mechanism on an enlarged scale. Fig. 4E represents a horizontal section through the shafts of the capping-irons on line as, Fig. 2, showing also the parts below the same, the same being on an enlarged scale. Fig. 5 represents a horizontal section on line y y, Fig. l, on an enlarged scale, showing the mechanism for rotating the shafts of the capping-irons. Fig. 6 represents a perspective view of a portion of a modiiication of the can-feeding flight.

Similar letters of reference indicate corresponding parts in the several figures.

Referring to the drawings, A designates the frame of the machine, and B designates the table or bed thereof. C designates sprocket-chains which are adapted to move on said bed, the same passing around the sprocket-wheels I), the shaft E of one set thereof carrying a ratchet F, with which engages the pawl G, which is operated by means of a rising andfalling arm H,which is mounted on the frame A and carries the pulley J, the latter engaging with the cam K on the driving-shaft L, by which means intermittent motion is imparted to the chains C, and consequentlyto the can trays or flights M, which serial No. 509.0462. (No miei.)

are connected with or engaged by said chains so as to be operated by the same over the bed B. 'N designates an acid-tank which is supported over the bed B at one end thereof by the standards I), and is provided with cocks or faucets Q, below each of which is a brush R, the brushes being connected with heads S, the latter being attached to rising and falling rods T, which are engaged by an elbowlever U, which is mounted on the frame A, and has its lowerlimb in Contact with the cam V on the shaft L.

0n the frame beside of the bed B is loosely mounted the ratchet XV, which is engaged by a pawl X, which is connected with the rising and falling rod Y, to which is attached the guide-rod Z, whose lower end is engaged by a cam A' on the shaft L, by which means intermittent motions may be imparted to said ratchet YV, and consequently' to the solderfeed grooved roller B secured to the shaft C of said ratchet. interposed between said roller and ratchet is a clutch C', the shaft C on which the same is mounted having a feathered connection wit-h the movable clutch member, the latter being engaged by the upper limb of the bent lever D, which is mounted on the frame A and has its lower limb weighted, as at E, the other member of the clutch being secured to one side of the said ratchet WV. The upper limb of said lever D/ is engaged by the bifurcation F of a rocking lever G', one limb of which carries the roller H, which latter is raised by the sides of the iiight M and permitted to drop on the bed B after leaving said flight, by which means reciprocatin g motions are imparted to the lever D, the effect of which is to cause the movable member of the clutch mechanism to be engaged with or disengaged from the other member, which is connected with the ratchet, it being seen that the solder, which is in the form of wire, is guided above said roller B from any suitable source of supply-such, for instance, as the spools shown in the said Patent No. 443,289-so as to be advanced intermittently to the rotatable capping or heat- `ing irons J', the latter being connected with the shafts K', having pnions connected therewith and which are operated by means of the sliding horizontal racks K2, which are guided in a suitable portion of the frame and are con- IOO nected at one end to the upper end of the pivoted lever BX, which has its lower end moving in a cam-groove of a pulley on the driving-shaft; but said mechanism for rotating the capping-irons so as to carry the solder to the proper place on the can is not a part per se of this invention, being fully set forth in the patent aforesaid-viz., No. 443,239. rlhe universal-joint connections of the stems of the capping-irons shown in Fig. 4f forms per se no part of this invention, and are fully shown and described in said Patent No. 43,289. Surrounding said irons J' are gasburners L', the same being in communication with a chamber M', which is supplied with gas from any suitable source, said chamber, burners, and irons being inclosed in a hood N'.

Located above the bed are pipes P', which lead from any suitable supply for directinga cold blast of air on the top of the cans for cooling purposes after the capping-irons or heads J' have completed their work and have been raised from the cans, said pipes being provided with a valve Q', which is operated at intervals by the action of the arm R', and the cam S', which actuates said arm, said cam being on the shaft L.

The flight M has pieces T' projecting from the sides thereof, the same engaging with lugs U' on the chains C, as shown in Figs. l, 2, and 3, whereby as the chains are advanced the lugs bear against said pieces, and thus carry the flight M intermittently with them.

The bed B and connected parts may be raised and lowered, so as to adapt the machine for cans of different heights, for which purpose it has depending feet IV' on its under side, the same resting on cams X', which are mounted on the frame A, it being evident that by properly rotating said cams the bed may be raised and lowered, and when the same is in its adjusted position it is retained thereon by means of the bolts Z', which are fitted to the proper part of the frame and engaged with said bed B.

The operation is as follows: Power is applied to the shaft L in any suitable manner, whereby the various parts receive their motion. The cans having been placed in the flight are advanced by the latter, and when they are beneath the brushes R, which latter are supplied with acid dropping from the faucets Q, said brushes are lowered into contact with the tops of the cans and properly coat the same with. acid, the brushes then rising and the cans next advancing with the flight until they reach a position beneath the capping-irons J', which are in a heated condition. When the irons descend,- the solder is properly `applied and said irons rotate in one direction and then in a reverse direction, after which the irons are raised clear of the cans. The cooling-blast is now directed upon the applied solder, and the cans, which are now in sealed condition, are farther advanced and carried away to the end of the machine, where they may be removed either from the flight or with the flight. It will here be no` ticed that when the side of the flight reaches the roller II' it lifts the same, whereby the bifurcated end F' and the lever G' moves the movable member of the clutch C' into engagement with the member on the side of the ratchet IV, whereby, by means of the movements of the rod Y with the pawl X and ratchet XV, a partial rotation can be imparted to the shaft CX, and consequently to the solder-feed roller or wheel B'. Then the roller H is clear of the flight it drops and the weight E of the lever D' becomes operative, thus shifting the movable clutch member from the ratchet, whereby the feeding of the solder ceases, the ratchet W, however, continuing to receive motion at intervals and rotating freely on the shaft CX, which motion may again be transmitted to the roller B' when the roller II' is raised by the succeeding flight.

In the present case there are two sets of capping-irons, solder-feed rollers B' and accessories, so that two sets of cans may be simultaneously soldered, after which two other sets are advanced to be soldered, the parts of the machine being properly timed to effect such results.

Vhere it is not desirable to have the flight removable from the sprocket-chains the latter may be riveted or otherwise secured to the former, as shown in Fig. 6, so as to be carried by said chains, it bein g noticed that the chains pass around the sprocket-wheels D, while the flight moves freely between said wheels.

When cans of different diameters are carried by the flights and their centers are accordingly changed so far as their relation to the capping-irons are concerned, it is necessary to adjust the feed of the pawl G, the ratchet F, and consequently the sprocketwheel D and chains C in order to properly set the cans beneath the irons. For this purpose the pitman GX, which operates the pawl, is divided, and its sections, which are formed with right and left screw-threads, are connected by the nut IIX, whereby said pitman may be lengthened or shortened, the effect of which is evident. v

The construction of the flight, per se, forms the subject-matter of another application.

I-Iaving thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

l. A can-soldering machine having a frame, rotatable cams on said frame, a bed having feet supported on said cams, and bolts fitted in said frame and adapted to engage said bed, said parts being combined substantially as described.

2. In a cansolderin g machine, a frame, sprocket-wheels mounted on said frame and carrying sprocket-chains, a bed having pins engaged by lugs on said chains, and mechanism mounted on said frame for imparting an intermittent motion to said chains, said parts being combined substantially as described.

3. A can-solderingmachine having a solder- IOO IIO

feeding roller, ratchet-and-pawl mechanism, means for operating said paWl and ratchet, a clutch for transmitting motion to said roller from said ratchet, and means for opening and closing said clutch, said parts being combined substantially as described.

4. In a soldering-machine, a solder-feed roller, ratchetand-pawl mechanism, a clutch between the said roller and ratchet, a bent lever engaging the movable clutch member,

a rocking lever engaging said elboW-levcr,.

and a roller on said rocking lever controlled by the can conveyer or flight of the machine, substantially as described.

5 A can-soldering machine having a flight, and a chain for feeding the same, said flight having pins on its sides, and said chain having lugs With which said pins detachabh;7 engage, snbstantially as described.

GEORGE E. LOCKVOOD. 

